Because the Nineties, laboratory characterization of getting older has been diverging from predictions of evolutionary thought, specifically within the zone of genetics. at the same time, a technology of multilevel choice has discovered its position within the evolutionary literature. the writer means that facts warrants attention of a brand new paradigm for evolution of getting older, and proposes the demographic conception of senescence, wherein getting older has been affirmatively chosen since it degrees the loss of life fee through the years, aiding to stabilize inhabitants dynamics and stop extinctions.Read more...

summary: because the Nineties, laboratory characterization of getting older has been diverging from predictions of evolutionary conception, specially within the region of genetics. at the same time, a technological know-how of multilevel choice has came upon its position within the evolutionary literature. the writer means that proof warrants attention of a brand new paradigm for evolution of getting older, and proposes the demographic conception of senescence, wherein getting older has been affirmatively chosen since it degrees the demise expense through the years, assisting to stabilize inhabitants dynamics and forestall extinctions

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Extra resources for Aging is a group-selected adaptation: theory, evidence, and medical implications

Sample text

Sometimes the former is referred to as “squaring the mortality curve” and we can see why in the example below, which is a qualitative representation, valid for no animal in particular. Hormesis 7 “Squaring the Mortality Curve” Number remaining alive Preventing premature deaths Age Number remaining alive Delayed Aging Both mean and maximum lifespan Age Survival curves: Red is extended by intervention, blue without. Top: Early mortality is reduced, but late life mortality is increased so that the two curves converge at late ages.